Removal of Congo Red and Acid Yellow 36 Dye using Orange Peel and Rice Husk as Absorbents

Wong, Y. C.; Ranjini, K.N.; W.A.Wan-Nurdiyana,

doi:10.13005/ojc/300217

Cited by 12 publications

(8 citation statements)

References 6 publications

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“…That means higher level of dye adsorption occurred in lower concentration. Almost similar results of CR dye adsorption were experienced by Wang et al (2014) in their work by using orange peel and rice husk as adsorbent. The adsorption capacity of the banana peel was also in accordance with initial concentration, except initial concentration 40 mg/L.…”

Section: Sem Studysupporting

confidence: 74%

Potentiality of banana peel for removal of Congo red dye from aqueous solution: isotherm, kinetics and thermodynamics studies

2018

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Potentiality of fruit peel (banana peel) was evaluated by adsorption of Congo red (CR) dye from aqueous solution. The adsorption study was performed by varying operating variables such as pH, initial concentration of CR, adsorbent dose, contact time and temperature. The dust of banana peel was characterized by different instrumental techniques such as point of zero charge, scanning electron microscopy and Fourier transformed infrared spectroscopy. The results revealed that the dye adsorption is favorable at higher pH (10). The equilibrium of dye adsorption was assessed by Freundlich and Langmuir isotherm models. Similarly, kinetics of CR adsorptions was assessed by pseudo-first-order and pseudo-second-order kinetics. Results revealed that isotherm and kinetics of dye adsorption fit well with Langmuir isotherm and pseudo-second-order kinetics, respectively. The dye adsorption capacity was recorded as 1.727 mg/g. The thermodynamics of the dye adsorption revealed that the adsorption is thermodynamically favorable, spontaneous and exothermic in nature. The regeneration study suggested that 97.3% dye removal can be achieved by regenerating the spent adsorbent with 0.1 N NaOH solution. Finally, it can be concluded that banana peel could be an efficient adsorbent for removal of Congo red from aqueous medium.

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Section: Sem Studysupporting

confidence: 74%

Potentiality of banana peel for removal of Congo red dye from aqueous solution: isotherm, kinetics and thermodynamics studies

2018

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“…An increase in the dose from 0.25 g to 0.5 g resulted to 33-40% increase in the percent removal. This is possibly explained by the increase in the surface area for dye bindings and availability of additional sorption sites 29,31,32 .…”

Section: And Discussionmentioning

confidence: 99%

Biosorption Kinetic Models on the Removal of Congo red onto Unripe Calamansi (Citrus microcarpa) peels

Sumalapao¹,

Distor²,

Ditan³

et al. 2016

Orient. J. Chem

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Unripe calamansi peels were prepared and used as a bioadsorbent in the removal of congo red from an aqueous solution using batch adsorption studies. The efficiency of adsorption was evaluated by varying adsorbent dose and contact time. The removal of congo red increased at higher adsorbent dose and longer contact time. The overall rate of adsorption processes appeared to be in accordance with the pseudo-second order reaction mechanism. Higher initial adsorption rate, extent of surface coverage, and activation energy were favored at a lower adsorbent dose, while the intraparticle diffusion was relatively faster at a higher adsorbent dose. The intraparticle diffusion, Elovich, and MacArthur-Wilson models were adequate in describing the chaotic behavior of the kinetic processes involved in the removal of congo red dye onto unripe calamansi peels.

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“…Due to the rapid adsorption of all available sites and a relatively small amount of adsorbent used, removal efficiency of Cr(VI) decreased, an increase in the amount of adsorbent may therefore reverse adsorption trend 28 . The percentage removal of Cr(VI) remarkably increases at an increasing dose until 3 g possibly explained by the increase in the surface area for the metal to bind with the available additional sorption sites 26,28,29 .…”

Section: Kinetic Profilementioning

confidence: 99%

Batch Adsorption Study and Kinetic Profile of Cr(VI) Using Lumbang (Aleurites moluccana)-Derived Activated Carbon-Chitosan Composite Crosslinked With Epichlorohydrin

Villarante¹,

Bautista²,

Sumalapao³

2017

Orient. J. Chem

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Batch adsorption of toxic Cr(VI) ion from an aqueous solution using lumbang (Aleurites moluccana) activated carbon-chitosan composite crosslinked with epichlorohydrin as an adsorbent was investigated. The adsorption experiments were performed at varying pH, agitation time, initial Cr(VI) ion concentration, temperature, and adsorbent dose. At an initial concentration of 60 ppm Cr(VI), the maximum adsorption was observed at pH 3, adsorbent dose of 3 g/L, contact time of 75 min, and temperature of 30 o C. Analysis of the experimental data using different kinetic models revealed that the biosorption phenomenon behaved under a pseudo second-order rate mechanism.

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Removal of Congo Red and Acid Yellow 36 Dye using Orange Peel and Rice Husk as Absorbents

Cited by 12 publications

References 6 publications

Potentiality of banana peel for removal of Congo red dye from aqueous solution: isotherm, kinetics and thermodynamics studies

Potentiality of banana peel for removal of Congo red dye from aqueous solution: isotherm, kinetics and thermodynamics studies

Biosorption Kinetic Models on the Removal of Congo red onto Unripe Calamansi (Citrus microcarpa) peels

Batch Adsorption Study and Kinetic Profile of Cr(VI) Using Lumbang (Aleurites moluccana)-Derived Activated Carbon-Chitosan Composite Crosslinked With Epichlorohydrin

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